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2019 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)最新文献

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Transient Model-Based Detection Scheme for False Data Injection Attacks in Microgrids 基于瞬态模型的微电网虚假数据注入攻击检测方案
R. R. Kumar, D. Kundur, B. Sikdar
Centralized controllers are popularly used in Microgrid as it ensures its economic and stable operation. The measurements taken for such a controller are prone to false data injection (FDI) attacks which may result in destabilizing the microgrid. This paper presents a technique that uses transient information for detecting the FDI attacks in a microgrid. The detection technique works on the principle that any legitimate change in the system will be accompanied by a transient that can be observed by the measurement system. The transient solution is obtained using a backward forward sweep technique which is developed in this paper. This technique is much efficient than the Electromagnetic Transient Program (EMTP) as it solves the dynamic equations by exploiting the radial feature of the microgrid network. The solution is compared against the measured values such that in the event of an FDI attack, transients may not be present and hence it will have high deviations. The proposed technique is evaluated on a microgrid under the FDI attack and the results are presented.
集中式控制器是微电网经济稳定运行的保证,在微电网中得到广泛应用。为这种控制器所采取的措施容易受到虚假数据注入(FDI)攻击,从而可能导致微电网的不稳定。提出了一种利用瞬态信息检测微电网FDI攻击的方法。检测技术的工作原理是,系统中的任何合理变化都伴随着测量系统可以观察到的瞬态变化。利用本文提出的前向后向扫描技术得到了瞬态解。该方法利用微电网的径向特性求解微电网的动态方程,比电磁暂态程序求解效率高。将解决方案与测量值进行比较,以便在发生外国直接投资攻击的情况下,可能不存在瞬变,因此它将具有很高的偏差。在FDI攻击下的微电网上对该技术进行了评估,并给出了结果。
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引用次数: 4
An ensemble deep learning model for short-term load forecasting based on ARIMA and LSTM 基于ARIMA和LSTM的短期负荷预测集成深度学习模型
Lingling Tang, Yulin Yi, Yuexing Peng
Electrical load forecasting is an important part of power system planning and operation, which can guide the power enterprises to arrange generation plan reasonably, reduce the cost of power generation, and provide a reference for power grid reconstruction and optimization. However, due to the complicated inner non-linear property and seasonality pattern of electrical load, accurate short-term load forecasting (STLF) is of big challenge. In this paper, we firstly study the large time-span quasi-periodicity of load sequences, including the inner correlation of a short load segment and the quasi-periodicity among the load segments spanning different time duration from a week to a month. Then, an ensemble method is proposed, which combines Auto-regressive Integrated Moving Average (ARIMA) and Long Short Term Memory (LSTM) in order to fully exploit the large time-span quasi-periodicity of the loads. Here, ARIMA model captures the stationary pattern of the load segments, while LSTM extracts the complicated non-linear relations of load segments. The proposed method is evaluated on a data set of load consumption in Toronto, and the results show the proposed method outperforms the existing popular STLF models with a small payload of computational complexity.
电力负荷预测是电力系统规划和运行的重要组成部分,可以指导电力企业合理安排发电计划,降低发电成本,为电网改造和优化提供参考。然而,由于电力负荷内部复杂的非线性特性和季节性特征,对电力负荷进行准确的短期预测是一个很大的挑战。本文首先研究了负荷序列的大时间跨度拟周期性,包括短负荷段的内部相关性和负荷段之间从一周到一个月的不同时间跨度的拟周期性。在此基础上,提出了一种将自回归综合移动平均(ARIMA)和长短期记忆(LSTM)相结合的集成方法,以充分利用负荷的大时间跨度准周期性。其中,ARIMA模型捕捉的是负荷段的平稳规律,LSTM模型提取的是负荷段之间复杂的非线性关系。在多伦多的负荷消耗数据集上对所提方法进行了评估,结果表明所提方法以较小的负载计算复杂度优于现有流行的STLF模型。
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引用次数: 11
A Synthesized Dataset for Cybersecurity Study of IEC 61850 based Substation 基于IEC 61850变电站网络安全研究的综合数据集
P. Biswas, Heng Chuan Tan, Qingbo Zhu, Yuan Li, D. Mashima, Binbin Chen
Cyber attacks pose a major threat to smart grid infrastructures where communication links bind physical devices to provide critical measurement, protection, and control functionalities. Substation is an integral part of a power system. Modern substations with intelligent electronic devices and remote access interface are more prone to cyber attacks. Hence, there is an urgent need to consider cybersecurity at the electrical substation level. This paper makes a systematic effort to develop a synthesized dataset focusing on IEC 61850 GOOSE communication that is essential for automation and protection in smart grid. The dataset is intended to facilitate the research community to study the cybersecurity of substations. We present the physical system of a typical distribution level substation and several of its critical electrical protection operation scenarios under different disturbances, followed by several cyber-attack scenarios. We have generated a dataset with multiple traces that correspond to these scenarios and demonstrated how the dataset can be used to support substation cybersecurity research.
网络攻击对智能电网基础设施构成重大威胁,其中通信链路绑定物理设备以提供关键的测量、保护和控制功能。变电站是电力系统的重要组成部分。具有智能电子设备和远程访问接口的现代变电站更容易受到网络攻击。因此,迫切需要在变电站层面考虑网络安全问题。本文系统地开发了一个以IEC 61850 GOOSE通信为重点的综合数据集,该数据集对智能电网的自动化和保护至关重要。该数据集旨在促进研究界对变电站网络安全的研究。本文介绍了典型配电级变电站的物理系统及其在不同干扰下的几种关键电气保护运行场景,以及几种网络攻击场景。我们生成了一个具有与这些场景对应的多条轨迹的数据集,并演示了如何使用该数据集来支持变电站网络安全研究。
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引用次数: 38
Exploiting Breadth in Energy Datasets for Automated Device Identification 利用能源数据集的广度进行自动设备识别
S. Barker, Kyle Morrison, Tucker Williams
The recent explosion of interest in smart building energy-efficiency has led to a proliferation of public energy datasets. Most of these datasets focus on depth (i.e., many devices in a few buildings) as opposed to breadth (e.g., a few devices in many buildings), and thus most smart building algorithms are evaluated on depth-oriented datasets. We argue that increasing data breadth conveys important benefits that are not easily achieved by even a large quantity of deep data. As an illustrative case study, we consider the problem of classifying previously unseen appliances using an off-the-shelf classifier trained on known instances of other devices. Our experiments on multiple real-world datasets (both depth- and breadth-oriented) demonstrate significant and sustained benefits from increased data breadth, and point to the importance of incorporating greater breadth into similar techniques that rely on generalized electrical load models.
最近人们对智能建筑节能的兴趣激增,导致了公共能源数据集的激增。这些数据集大多侧重于深度(即,少数建筑物中的许多设备)而不是广度(例如,许多建筑物中的一些设备),因此大多数智能建筑算法都是在面向深度的数据集上进行评估的。我们认为,增加数据广度带来了重要的好处,即使是大量的深度数据也不容易实现。作为一个说明性案例研究,我们考虑使用已知其他设备实例训练的现成分类器对以前未见过的设备进行分类的问题。我们在多个真实世界数据集(面向深度和面向宽度)上的实验表明,增加数据广度带来了显著和持续的好处,并指出将更大的广度纳入依赖于通用电气负载模型的类似技术的重要性。
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引用次数: 1
Cost Minimization Energy Storage Sharing Management 成本最小化储能共享管理
Hailing Zhu, K. Ouahada
In this paper, energy storage sharing among a group of households with integrated renewable generations in a grid-connected microgrid is studied. In such a microgrid, a shared energy storage management (SESM) system is operated by an aggregator aiming to minimize the long term time-averaged costs of all households, by jointly taking into account the operational constraints of the shared energy storage, the stochastic solar power generations and the time-varying load requests from all households, as well as the fluctuating electricity prices. We formulate this energy management problem, which comprises storage management and load control, as a constrained stochastic programming problem. A centralized real-time sharing control algorithm is designed based on the Lyapunov optimization theory. The performance of the proposed real-time sharing control algorithm is evaluated. By comparing with a greedy sharing algorithm, it is shown that the proposed sharing algorithm outperforms in terms of both cost saving and renewable energy generation utilization.
本文研究了并网微电网中具有集成可再生能源发电机组的一组家庭之间的储能共享问题。在这种微电网中,共享储能管理(SESM)系统由一个聚合器运行,通过共同考虑共享储能的运行约束、随机太阳能发电和所有家庭的时变负荷需求以及波动的电价,以最小化所有家庭的长期平均成本。我们将这一能源管理问题表述为一个约束随机规划问题,其中包括存储管理和负荷控制。基于李亚普诺夫优化理论,设计了一种集中式实时共享控制算法。对所提出的实时共享控制算法的性能进行了评价。通过与贪婪共享算法的比较,表明所提出的共享算法在节约成本和可再生能源发电利用率方面都优于贪婪共享算法。
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引用次数: 3
SmartGridComm 2019 Committees SmartGridComm 2019委员会
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引用次数: 0
Optimum Local Energy Trading considering Priorities in a Microgrid 考虑优先级的微电网最优局部能源交易
A. Sebastian, S. Islam, Md. Apel Mahmud, A. Oo
In this paper, the energy sell/purchase for local energy trading is optimized to minimize the energy mismatch in a microgrid. In this microgrid, three groups of houses have been considered, those who have no solar panel or storage, those who have solar panels but no storage and those who have both the solar panel and storage. The houses are also equipped with load shifting capacity. For each of the houses, the difference in energy generation and consumption is forwarded to the control centre and the control centre optimizes the energy trading after which the outcome of the optimization is transmitted to individual houses. Different priorities are assigned to houses according to their consumption pattern and the corresponding optimization problems are solved in multiple stages accordingly. To evaluate the effectiveness of the proposed approach through numerical simulation, four different scenarios were considered with different energy consumption patterns and load shifting at different houses. The simulation results demonstrate that the proposed approach can achieve a reduction in energy mismatch up to 1000W during 09.00 a.m. to 12.00 p.m. for a microgrid with six houses and is more effective compared to the schemes where priorities are not assigned to participants. Moreover, the energy mismatch is further reduced when energy trading is jointly implemented with load shifting.
本文对局部能源交易中的能源买卖进行优化,使微电网中的能量失配最小化。在这个微电网中,考虑了三组房屋,那些没有太阳能电池板或储能的,那些有太阳能电池板但没有储能的和那些既有太阳能电池板又有储能的。这些房屋还配备了负荷转移能力。对于每个房屋,能源产生和消耗的差异被转发到控制中心,控制中心优化能源交易,然后优化的结果传递给各个房屋。根据房屋的消费模式对其分配不同的优先级,并分多个阶段解决相应的优化问题。为了评估该方法的有效性,通过数值模拟,考虑了四种不同的场景,不同的房屋具有不同的能耗模式和负荷转移。仿真结果表明,该方法可以在上午9点至下午12点之间实现6户微电网的能量失配减少高达1000W,与不分配优先级的方案相比,该方案更有效。此外,当能源交易与负荷转移联合实施时,能进一步减少能源失配。
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引用次数: 4
Adaptive Normalized Attacks for Learning Adversarial Attacks and Defenses in Power Systems 电力系统中学习对抗性攻击与防御的自适应归一化攻击
Jiwei Tian, Tengyao Li, Fute Shang, Kunrui Cao, Jing Li, M. Ozay
Vulnerability of various machine learning methods to adversarial examples has been recently explored in the literature. Power systems which use these vulnerable methods face a huge threat against adversarial examples. To this end, we first propose a more accurate and computationally efficient method called Adaptive Normalized Attack (ANA) to attack power systems using generate adversarial examples. We then adopt adversarial training to defend against attacks of adversarial examples. Experimental analyses demonstrate that our attack method provides less perturbation compared to the state-of-the-art FGSM (Fast Gradient Sign Method) and DeepFool, while our proposed method increases misclassification rate of learning methods for attacking power systems. In addition, the results show that the proposed adversarial training improves robustness of power systems to adversarial examples compared to using state-of-the-art methods.
最近在文献中探讨了各种机器学习方法对对抗性示例的脆弱性。使用这些易受攻击的方法的电力系统面临着对抗实例的巨大威胁。为此,我们首先提出了一种更准确和计算效率更高的方法,称为自适应归一化攻击(ANA),通过生成对抗性示例来攻击电力系统。然后,我们采用对抗性训练来防御对抗性示例的攻击。实验分析表明,与最先进的FGSM(快速梯度符号方法)和DeepFool相比,我们的攻击方法提供了更少的扰动,而我们提出的方法增加了攻击电力系统的学习方法的误分类率。此外,结果表明,与使用最先进的方法相比,所提出的对抗训练提高了电力系统对对抗示例的鲁棒性。
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引用次数: 9
Design and Practical Verification of a Common DC Bus Power System in a Research Vessel 科考船通用直流母线电源系统的设计与实用验证
Yunxiang Wu, Qinghua Xu, S. Shao, Hongpin Zhao, G. Chang, Yang Liu
This paper presents a common DC system employed in a research vessel, showing the advantages of smaller size, less fuel consumption and better control performance. Detailed design considerations are discussed, followed by experimental verification and field test results. The proposed system can achieve stable and flexible operation.
本文介绍了一种用于某科考船的通用直流系统,具有体积小、燃油消耗少、控制性能好等优点。讨论了详细的设计考虑,然后进行了实验验证和现场测试结果。该系统能够实现稳定、灵活的运行。
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引用次数: 0
Joint Optimal Allocation and Scheduling for Electric Buses with Vehicle-to-Grid Regulation Service 具有车对网调节服务的电动客车联合优化分配与调度
Shiyao Zhang, Ka-Cheong Leung
Electric Bus (EB), as a special type of electric vehicle (EV), can be regarded as a large mobile storage in the city. With large batteries installed, EBs are capable of providing frequency regulation service to the local power grid of the city. In this paper, a novel framework for joint optimal allocation and scheduling for EBs with V2G regulation service is studied. First, the optimal allocation and scheduling problem is proposed as a mixed-integer quadratic programming (MIQP) problem. Second, by using the Lagrangian dual decomposition method, a distributed algorithm is devised to solve this problem. The simulation results show that both the optimal allocation to balance EB demand in the city and scheduling for V2G regulation service can be achieved in an effective manner. In addition, with more EBs participated in the system, the power fluctuations of local city power grid can be further flattened.
电动客车作为一种特殊类型的电动汽车,可以看作是城市中的一个大型移动储能系统。由于安装了大型电池,EBs能够为城市的本地电网提供频率调节服务。本文研究了一种具有V2G调节业务的EBs联合最优分配与调度的新框架。首先,将最优分配与调度问题转化为一个混合整数二次规划问题。其次,利用拉格朗日对偶分解方法,设计了一种分布式算法来解决这一问题。仿真结果表明,该方法既能有效地实现城市EB需求的优化分配,又能有效地实现V2G调节业务的调度。此外,更多的EBs参与系统,可以进一步平抑当地城市电网的功率波动。
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引用次数: 4
期刊
2019 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)
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